Abstract
The behavior of the C60F48 fluorofullerene—a compound with maximum fluorine content that can be synthesized in pure form through direct fluorination—is investigated in alkane solutions. The kinetics of formation of C60F48 crystal solvates at solid-phase equilibrium with a saturated solution is studied by differential scanning calorimetry (DSC) and thermogravimetry. The composition of the crystal solvates and the temperatures and enthalpies of their decomposition are determined. It is found that the C60F48 solvates formed upon crystallization from saturated solutions of pentane, hexane, and heptane are more stable than the hexagonal solvates (with octane, nonane, decane, and undecane). The latter solvates undergo decomposition into the initial fluorofullerene and liquid hydrocarbon at temperatures below the boiling points of the hydrocarbons.
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